1104.4854 (Moto Araki et al.)

Steplike electric conduction in a classical two-dimensional electron
system through a narrow constriction in a microchannel    [PDF]

Moto Araki, Hisao Hayakawa

Using molecular dynamics simulation, we investigate transport properties of a classical two-dimensional electron system confined in a microchannel with a narrow constriction. As a function of the confinement strength of the constriction, calculated conductance in the simulations exhibits steplike increases as reported in an experiment [D. G. Rees et al., Phys. Rev. Lett. \textbf{106}, 026803 (2011)]. It is confirmed that the number of the steps corresponds to the number of stream lines of electrons through the constriction. We verify that density fluctuation plays major roles to smooth the steps in the conductance.

View original: http://arxiv.org/abs/1104.4854